Machine for wiring sheet metal.



W. R. MAGIE.

MACHINE FOR WIRING SHEET METAL.

APPLICATION FILED JULY 8, 1909.

Patented Dec. 14, 1909.

2 SHEETS-SHEET 1.

INVENTOR Wm WITNESSES w aw Allo rney E M/M ll W. R. MAGIE.

MACHINE FOR-WIRING SHEET METAL.

APPLICATION FILED JULY 8, 1909.

943,1 18 Patented Dec. 14, 1909.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR Qnanzw s. munm cm mmmumocnmzns. WASNIMGTM n c UNITED sT TnsfParEN OFFICE.

WEBER- R. MAGIE',,0F mnfaimroms, m'nmim.

To all whom it may concern:

Be it known that I, VVILBEI: R. MAGIE, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented new and useful Improvements in Machines for iring Sheet Metal, of which the following is a specification.

My invention has to do with the wiring of sheet-metal; and it contemplates the provision of a machine adapted to expeditiously inclose a wire in the edge portion of a piece of sheet-metal by operations following one upon another incidental to, the continuous feed of the sheet-metal and wire through the machine, and this irrespective of whether the edgeof the piece of sheet-metal is curved or is straight.

With the foregoing in view the invention will be fully understood from the following description and claims when the same are read in connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a longitudinal vertical section of the machine constituting the present and best practical embodiment of my invention of which I am cognizant. Fig. 2 is a plan view of the same. Fig. 3 is a rear end elevation of the machine with the crank omitted. Figs. 4, 5 and 6,. are diagrammatic views showing the manner in which the edge portion of the sheet-metal is bent step by step about the wire. Fig. 7 is a detail view show ing in plan a piece of sheet-metal wired by my novel machine.

Similar letters of reference designate cor responding parts in all of the views of the drawings.

In Figs. 4 to 7 A is a piece of sheet-metal, and B is a wire inclosed in the edge portion of the same. My invention provides a machine embodying a set of rolls C and D for bending the sheet-metal relative to the wire, as shown in Fig. 4, a set of rolls E and F, disposed at a right angle to the rolls C and D and adapted for bending the sheet-metal relative to the wire, as shown in Fig. 5, and a third set of rolls G and II disposed vertically and adapted for bending the piece of sheet-metal, relative to the wire, as shown in Fig. 6, and thereby finishing the inclosing of the wire and the iring of the sheetmetal.

In addition to the three sets of rolls referred to, my novel machine comprises a Specification of Letters Patent.

Application filed July 8, 1909.

ncnmn FOR WIRING METAL.

Patented Dec. 14, 1909. Serial No. 506,526.

main frame I, a longitudinal shaft J bearing in said frame and designed to be rotated through a crank K or other means, and equipped with a spur gear a, a miter gear I), a longitudinal shaft L disposed below and in the same vertical plane as the shaft J and journaled in boxes 0 and (Z and equipped with spur gears e and f, and a longitudinal shaft M journaled in a vertically movable box 9 and also in a box it and equipped with a spur gear 2'. The spur gear a on shaft J is intermeshed with the spur gear f on shaft L, and the spur gear 6 on said shaft L is intermeshed with the spur gear 2' on the shaft M. From this it follows that when the shaft J is rotated, the shafts L and M will be rotated in opposite directions. A split nut N is mounted on the rear threaded end j of shaft L, and hence it will be manifest that the said shaft L may be drawn rearwardly and adjustably fixed against forward movement. It will also be manifest by reference to Fig. 1 that the box 9 of the lower shaft M rests on a screw P which bears in the main frame I and is equipped with a jam-nut 76. By virtue of these provisions, the traction exerted by the rolls C and D may be nicely regulated as occasion demands. The roll C is preferably threaded at Z upon the forward reduced end of the shaft M, and is provided with a circumferential flange m. I would also have it here understood that I prefer to provide the roll C with a forwardly extending tubular portion 12, which may be utilized, when desired, as a support for the work. The roll D is preferably threaded at 7? upon the forward reduced end ofv the shaft L, and is provided with an inner flange or gage portion 1' and an outer main portion a, the two being separated by an intervening circumferential groove which receives the flange m of roll C, after the manner illustrated in Fig. 1. It will also be seen by reference to said Fig. 1 that the perimeter of the roll portion 8 is opposed to the corner recess of the roll C, and that in said perimeter is formed a groove 2. for accommodating the wire used in the wiring operation.

Fixed to the main frame I and arranged flush with the upper side thereof is a steel plate Q, and in said plate Q, is mounted a bolt-like shaft R which is threaded at its lower end in a projection a on the main frame. Loosely mounted on said shaft R are miter gears S and T, disposed above and below the gear 6, respectively, and'designed to be synchronously rotated in opposite directions by the said gear Z2. The miter gear S is integral with a spur gear U, and the miter gear T is integral with a spur gear 'V.

Fixed to lower and upper vertically disposed pins o and w, Figs. 1 and 3, journaled in the lower and upper forward portions of the main frame I is ahorizontally swinging subframe 1V, and loosely mounted on the pin to, above the said upper portion of the main frame, are spur gears m and 3 separated by an interposed washer z and intermeshed with the spur gears U and V, respectively.

J ournaled in the upper portion of the subframe IV are parallel vertical shafts X and Y, which carry the rolls E, and F, respectively, and fixed on the upper ends of the said shafts X and Y are lapped spur gears 31 and y intermeshed with the spur gears :0 and 3 respectively. It will thus be seen that the sub-frame W is free to swing to the right or left as the operator feeds the sheetmetal against the gage 1 while turning the crank 7a. It will also be manifest that the driving connections comprising the miter gear 6, the miter gear S, the spur gear U, the spur gear 02, and the spur gear 00 on the one hand, and the miter gear I), the miter gear T, the spur gear V, the spur gear 3/ and the spur gear 3 on the other, will not be affected by the swinging movements of the sub-frame 1V and consequently the rolls E and F will be rotated in opposite directions so long as the crank K is rotated. The rolls E and F are shaped and opposed to each other as best shown in Fig. 1, and consequently they are adapted to bend the sheetmetal relative to the wire as shown in Fig. 5 incidental to the passage of the sheet-metal edge portion and the wire between said rolls.

Pivoted at 04 and b to lower and upper portions of the sub-frame W is a second horizontally swinging sub-frame Z, and by this latter sub-frame are carried the rolls G and H for completing the inclosing of the wire in the sheet-metal edge portion, as shown in Fig. 6. The roll G is circumferentially grooved as shown in Fig. 2, while the periphery of the roll H is plain as is made clear by the projected view of said roll H at the right of Fig. 3. Said rolls G and H are not driven, the traction of the previous sets of rolls being depended upon to feed the work forwardly between the rolls Gr and H. It will be noticed, however, that by reason of the swinging capacity of the second sub-frame Z on the first sub-frame IN and with respect thereto, the rolls G and H are free to accommodate themselves to ourvature of the edge portion of the sheet-iron.

It will be gathered from the foregoing that through the medium of my novel machine, a piece of sheet-metal may be expedltlously and easily. wired, and all that the .operatorhas to do incidental to the said opment of parts, may be made as do not involve departure from the scope of my claimed invention.

Having described my invention, what I claim and desire to secure by Letters-Patent, is:

1. A machine for wiring the edges of sheet-metal, comprising a main frame, a subframe pivotally connected therewith and thereby adapted to swing thereon to accommodate itself to curves in the edge of a piece of sheet-metal, and pairs of opposed rolls adapted to receive and hold the sheet-metal and the wire between them and to gradually bend the metal around the wire to hold the latter within the folded edge of the metal; one of the said pairs of rolls being carried by the main frame, and another pair being carried by the sub-frame.

2. A machine for wiring the edges of sheet-metal, comprising a main frame, a subframe connected with and adapted to swing on the main frame, and a second sub-frame connected and movable with the first subframe and adapted to swing independently thereof, and pairs of rolls adapted to re- 3. A machine for wiring the edges of sheet-metal, comprising a main frame, a primary driver therein, a sub-frame connected with and adapted to swing on the main frame, pairs of opposed rolls adapted to receive and hold the sheet-metal and the wire between them and to gradually bend the metal around the wire to hold the latter within the folded edge of the metal; one of the said pairs of rolls being carried by the main frame, and the other pair being carried by the sub-frame, a driving connection intermediate the primary driver and the pair of rolls in the main frame, and a driving connection intermediate the primary driver and the pair of rolls in the sub-frame and adapted to accommodate itself to the swinging movements of said sub-frame.

a. A machine for wiring the edges of l tial groove that is opposed to the corner resheet-metal, comprising a main frame, a primary driver therein, a sub-frame connected with and adapted to swing independently of the main frame, a second sub-frame connected with and adapted to swing independently of the first sub-frame, pairs of opposed rolls adapted to receive and hold the sheet-metal and the wire between them and to gradually bend the metal around the wire to secure the latter within the folded edge of the former, the first of said pairs of rolls being carried by the main frame, the second by the first sub-frame, and the third by the second sub-frame, driving connections intermediate the primary driver and the first pair of rolls for rotating the latter in opposite directions, and driving connections intermediate the primary driver and the second pair of rolls for rotating the latter in opposite directions, the last named driving connections being adapted to accommodate themselves to the swinging movements of the first sub-frame.

5. A machine for wiring the edges of sheet-metal, comprising a series of pairs of suitably supported rolls constructed to receive and hold the sheet-metal and the Wire laid there against and to gradually bend the metal around the wire to secure the latter within the folded edge of the metal; one of the first pair of rolls being provided with a circumferential flange, and the other being provided with a circumferential groove which receives said flange and being also provided, at the inner side of said groove, with a gage flange, and in its portion at the outer side of the groove with a circumferencess formed between the major portion and the circumferential flange of the first-named roll.

6. A machine for wiring the edges of sheet-metal, comprising a main frame, a primary driver therein, a sub-frame connected with and adapted to swing independently of the main frame, pairs of opposed rolls adapted to receive and hold the sheetmetal and the wire between them and to gradually bend the metal around the wire to secure the latter within the folded edge of the metal; the first of said pairs of rolls being carried by the main frame and the second being carried by the sub-frame, driving connections intermediate the primary driver and the first pair of rollsfor rotating said rolls in opposite directions, shafts jour naled in the sub-frame and fixed to the rolls of the second pair, a miter gear fixed to the primary driver, suitably supported miter gears intermeshed with the first-named miter gear and each having fixed thereto a spur gear, spur gears intermeshed with the first named spur gears and suitably supported about the center of movement of the sub-frame, and spur gears intermeshed with the second named spur gears and fixed 011 the shafts of the rolls of the second pair.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

VVILBER R. MAGIE.

lVitnesses:

PEARL MAGIE, T. J. Mom. 

